3020-00-406-4783 GEAR,ANTIBACKLASH,SPUR Index 3020-00-406-4785 GEAR,ANTIBACKLASH,SPUR

National Stock Number:
3020-00-406-4784

Federal Supply Class:
3020

National Item Identification Number:
004064784

Description:
GEAR,ANTIBACKLASH,SPUR

Detail:
An item having one fixed gear and one free gear, both having the same complement of spur gear teeth, mounted on a common hub. The free gear is attached to the fixed gear by springs and operates as one gear. Upon installation with the mating gear, the teeth of the free moving gear are preset to mesh with teeth other than those of the fixed gear. This spring tension between the fixed gear and the free gear eliminates any free motion between the driver and the driven gear. The gear is used where identical and accurate transmitted motion between gears is required.


Manufacturer Information:
60878-682340L3HARRIS TECHNOLOGIES, INC.
60878-69Y580L3HARRIS TECHNOLOGIES, INC.
AB250-144P2-0-249801351SOUTHERN GEAR & MACHINE INC


Techincal Specification:
MATERIALALUMINUM ALLOY OVERALL
TEETH QUANTITY144
TOOTH FORMSTANDARD
PRESSURE ANGLE20.0000 DEGREES
PRECISION CLASSIFICATIONQUALITY NUMBER 12
BACKLASH DESIGNATIONGRADE D
STYLE DESIGNATORPROTRUDING HUB
PITCH DIAMETER2.2500 INCHES NOMINAL
NOMINAL OUTSIDE DIAMETER2.2812 INCHES
FACE NOMINAL WIDTH0.125 INCHES
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.250 INCHES FIRST END
BORE STYLEPLAIN BOTH ENDS
BORE NOMINAL DIAMETER0.250 INCHES BOTH ENDS
HUB STYLE DESIGNATORPINNED FIRST END
HUB NOMINAL DIAMETER0.563 INCHES FIRST END
THE MANUFACTURERS DATA
MANUFACTURERS CODE01351
DESIGN CONTROL REFERENCEAB250-144P2-0-2498


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